Very interresting - extremely slow installation through a instalator but quite a normal speed when copying cca 4000 files manualy.
...And this difference is not in MSDOS. In theory - could it be explained by frequent calling the function "GetFreeDiskSpace"? (Int21h/36h) I have not seen the source of the installer and such algorithm would be not very clever but what if installer checks the free disk space before every single file copy? And again - I have not seen the sources of FreeDOS kernel (nor the MSDOS kernel) but what if the MSDOS version is working quickly (using some caches) and the FreeDOS version scans the filesystem in every call?
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